Home / 775,373,420.54-1,070,022,149.22-422,950,978.59

Finding the Fourth Proportional to 775,373,420.54, 1,070,022,149.22 and 422,950,978.59

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Solution

The fourth proportional to 775,373,420.54, 1,070,022,149.22 and 422,950,978.59 is: 583,676,075.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,373,420.54 : 1,070,022,149.22 = 422,950,978.59 : x
  2. Step 2: Convert to fraction form
    775,373,420.54/1,070,022,149.22 = 422,950,978.59/x
  3. Step 3: Cross multiply
    775,373,420.54x = 1,070,022,149.22 × 422,950,978.59
  4. Step 4: Simplify right side
    775,373,420.54x = 452,566,915,125,574,016
  5. Step 5: Solve for x
    x = 452,566,915,125,574,016/775,373,420.54
  6. Step 6: Final answer
    x = 583,676,075.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.